Text 388, 84 rader
Skriven 2004-08-24 12:12:00 av Michiel van der Vlist (2:280/5555)
    Kommentar till text 387 av mark lewis (1:3634/12)
Ärende: Fido on the move via cell phone.
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 >  >>  RB> The police operate the moveable radar traps here,
 >  >>  RB>and if they see you using anything like this, your
 >  >>  RB> license is gone for at least 6 months.

 >  >> The problem with that theory is that they can't tell if
 > >> there's PAM on the plate until they see the video.

 >  MvdV> The problem with your theory is that the PAM does not
 >  MvdV> work on the European reflector plates.

 > how do you know unless you've tried it?

I haven't tried it personally but I know of people who did. And I know odf
people who did some tests under laboratory condition.

It doesn'r work. It is urban legend.

 > are the european reflector plates (and other things based on
 > the same "technology" like road signs) not based on the crushed
 > glass particles in paint stuff that north american stuff is
 > based on?

What I do know is that the plates are much better reflectors than the road
signs.

If you think about it for a minute you will know that it can not work. The give
away is the claim that one can not see it withthe naked eye. Over here they use
visible light for the camers. So if the naked eye can not see it, the camera
can't either.

Maybe the cameras in North Amrica use infrared. Then it just /may/
work/. In theory. I doubt it though. I suspect Roy is feeding us urban legend
too.

Have you actually tired it yourself? If not how do yo know it works?

 >  MvdV> Those and the pure passive devices that only give a warning
 >  MvdV> when it detects a radar trap, are illegal too. When they see
 >  MvdV> you avoid speed traps by slowing down when in range of them,
 >  MvdV> they chase you and stop you. And they start looking. Don't
 >  MvdV> think you can fool them by hiding the thing. They know what to
 >  MvdV> look for and they will find it.

 > that would indicate that there are live cops around
 > watching and "profileing"...

There are. Not at every autonatied speed trap of course, that would defeat the
purpose of automation. But they do spot checks.

Also some stretches are watched by cameras. The cops are in a building
somewhere else, but they can send cops on fast motorcycles after you if the
detect suspicious behaviour.

 >  >> Doesn't work very well with the laser light
 >  >> units though.

 >  MvdV> Does not work at all with the laser guns. Period.

 > that would depend on one's distance from the gun ;) the
 > beams aren't so constricted as to still be a few mm's in
 > cross section at 1/8th mile ;)

/Radar/ detection devices don't work on laser guns. Period.

 >  MvdV> What helps is a "laser shield" but they are illegal too
 >  MvdV> and as the laser gun speed traps are operated manually
 >  MvdV> they will see immidiately when your are using one. Again
 >  MvdV> they will chase you....

 > again, those are manned stations... the original thread was
 > about the automated, speed triggered cameras ;)

And then someone mentioned laser guns...

Those are always manned. The laser must be pointed at the car you want to
trace. They usually point them at th licence plate as it is a good reflector...

The laser guns are used on very busy spots where an automatic radar trap would
not work because it can't tell which car in the crowd is speeding.

Cheers, Michiel

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